Woot offers allbirds Men's Natural Run Short 2-Pack for $29.99 (orig. $88). Free shipping for Prime Members.

Product Features:
Break a sweat, not the planet with these lightweight, breathable shorts. Made with a mix of sustainable materials, they wick moisture, dry quickly and keep you cool for every squat, stretch, and stride.   

• 51% ZQ Merino wool, 32% recycled nylon, 11% nylon and 6% elastane   
• 2-Pack   
• Lightweight fabric with hint of stretch
• 2 side pockets and one back pocket
• 7" inseam